/* Vanta Gold — blog layer. Restyles the existing blog article/index classes in the gold design
   so article body markup stays untouched. Loads after /css/vanta-gold.css. */

/* ── Article hero ── */
.article-hero { padding: clamp(110px, 13vw, 160px) 0 8px; }
article .container { max-width: 1100px; margin: 0 auto; padding: 0 var(--gx); }
.article-breadcrumb { font-size: 10.5px; letter-spacing: .11em; text-transform: uppercase; color: rgba(var(--ink), .45); display: flex; gap: 10px; flex-wrap: wrap; }
.article-breadcrumb a { color: rgba(var(--ink), .45); transition: color .2s ease-out; }
.article-breadcrumb a:hover { color: rgb(var(--acc)); opacity: 1; }
.article-breadcrumb .sep { color: rgba(var(--ink), .25); }
.article-category-pill { display: inline-block; margin-top: 34px; padding: 7px 14px; border: 1px solid rgba(var(--acc), .32); color: rgb(var(--acc)); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; }
.article-title { margin: 22px 0 0; font: 300 clamp(28px, 3vw, 44px)/1.25 var(--serif); letter-spacing: .01em; color: rgb(var(--ink-hi)); text-shadow: 0 -1px 1px rgba(0,0,0,.9), 0 1px 0 rgba(var(--ink),.14); max-width: 860px; text-wrap: balance; }
.article-meta { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px; font-size: 12.5px; color: rgba(var(--ink), .5); }
.article-meta .dot { color: rgba(var(--ink), .25); }
.article-meta .author { color: rgba(var(--ink), .62); }
.article-featured-img-wrap { margin-top: 44px; }
.article-featured-img { width: 100%; height: auto; display: block; border: 1px solid var(--hairline); }

/* ── Layout: TOC + content ── */
.article-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 72px; padding: clamp(44px, 5vw, 72px) 0 clamp(90px, 10vw, 140px); }
.article-toc-col { position: sticky; top: 110px; align-self: start; max-height: calc(100vh - 140px); overflow-y: auto; scrollbar-width: none; }
.article-toc-col::-webkit-scrollbar { display: none; }
.article-toc-kicker { font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: rgba(var(--ink), .48); padding-bottom: 14px; border-bottom: 1px solid var(--hairline); }
.article-toc-list { list-style: none; margin: 0; padding: 14px 0 0; }
.article-toc-list li a { display: block; padding: 7px 0; font-size: 12.5px; line-height: 1.5; color: rgba(var(--ink), .5); transition: color .2s ease-out; }
.article-toc-list li.h3-item a { padding-left: 14px; font-size: 11.5px; }
.article-toc-list li a:hover { color: rgba(var(--ink), .85); opacity: 1; }
.article-toc-list li a.toc-active { color: rgb(var(--acc)); }
.article-content-col { min-width: 0; max-width: 720px; }

/* ── Prose ── */
.article-prose { font-size: 15.5px; line-height: 1.85; color: rgba(var(--ink), .7); }
.article-prose p { margin: 0 0 22px; }
.article-prose h2 { margin: 56px 0 20px; font: 300 27px/1.3 var(--serif); letter-spacing: -.01em; color: rgb(var(--ink-hi)); text-shadow: 0 -1px 1px rgba(0,0,0,.9), 0 1px 0 rgba(var(--ink),.12); }
.article-prose h3 { margin: 42px 0 16px; font: 300 21px/1.35 var(--serif); color: rgb(var(--ink-mid)); }
.article-prose h4 { margin: 32px 0 12px; font-size: 14px; letter-spacing: .06em; text-transform: uppercase; color: rgba(var(--ink), .75); font-weight: 400; }
.article-prose ul, .article-prose ol { margin: 0 0 22px; padding-left: 20px; }
.article-prose li { margin: 0 0 10px; }
.article-prose li::marker { color: rgba(var(--acc), .7); }
.article-prose a { color: rgb(var(--acc)); border-bottom: 1px solid rgba(var(--acc), .3); transition: border-color .2s ease-out; }
.article-prose a:hover { border-color: rgb(var(--acc)); opacity: 1; }
.article-prose strong { color: rgba(var(--ink), .88); font-weight: 400; }
.article-prose blockquote { margin: 34px 0; padding: 4px 0 4px 26px; border-left: 1px solid rgba(var(--acc), .5); font: italic 300 19px/1.6 var(--serif); color: rgb(var(--ink-mid)); }
.article-prose code { font-family: var(--mono); font-size: 13px; background: rgba(255,255,255,.05); padding: 2px 6px; border: 1px solid rgba(255,255,255,.06); }
.article-prose pre { background: rgba(255,255,255,.03); border: 1px solid var(--hairline); padding: 18px 20px; overflow-x: auto; margin: 0 0 22px; }
.article-prose pre code { background: none; border: none; padding: 0; }
.article-prose img { max-width: 100%; height: auto; border: 1px solid var(--hairline); margin: 10px 0; }
.article-prose hr { border: 0; border-top: 1px solid var(--hairline); margin: 44px 0; }
.article-prose table { width: 100%; border-collapse: collapse; margin: 0 0 26px; font-size: 13px; }
.article-prose th, .article-prose td { padding: 12px 14px 12px 0; border-bottom: 1px solid var(--hairline); text-align: left; vertical-align: top; }
.article-prose th { font-size: 10.5px; letter-spacing: .11em; text-transform: uppercase; color: rgba(var(--ink), .48); font-weight: 400; }
.article-prose td { font-family: var(--mono); font-size: 12.5px; color: rgba(var(--ink), .78); }

/* ── Author box ── */
.author-box { margin-top: 64px; padding-top: 28px; border-top: 1px solid var(--hairline); display: flex; gap: 18px; align-items: flex-start; }
.author-avatar { width: 44px; height: 44px; flex: 0 0 auto; border: 1px solid var(--hairline); overflow: hidden; }
.author-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.author-info-name { font-size: 11px; letter-spacing: .11em; text-transform: uppercase; color: rgba(var(--ink), .7); }
.author-info-bio { margin-top: 8px; font-size: 13px; line-height: 1.7; color: rgba(var(--ink), .55); max-width: 560px; }

/* ── Article FAQ (details/summary in prose) ── */
.article-prose details { border-top: 1px solid var(--hairline); }
.article-prose details:last-of-type { border-bottom: 1px solid var(--hairline); }
.article-prose summary { list-style: none; cursor: pointer; padding: 20px 0; font: 300 17px/1.4 var(--serif); color: rgba(var(--ink), .88); }
.article-prose summary::-webkit-details-marker { display: none; }

/* ── Related articles ── */
.related-section { border-top: 1px solid var(--hairline); padding: clamp(56px, 7vw, 90px) 0; }
.related-section-kicker { font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: rgba(var(--acc), .75); }
.related-section h2 { margin: 14px 0 0; font: 300 26px/1.3 var(--serif); color: rgb(var(--ink-hi)); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.related-card { display: block; border: 1px solid var(--hairline); padding: 24px 24px 28px; transition: border-color .2s ease-out; }
.related-card:hover { border-color: rgba(var(--ink), .35); opacity: 1; }
.related-card .cat { font-size: 10px; letter-spacing: .13em; text-transform: uppercase; color: rgba(var(--acc), .8); }
.related-card .t { margin-top: 14px; font: 300 17px/1.45 var(--serif); color: rgba(var(--ink), .88); }
.related-card .d { margin-top: 12px; font-size: 12.5px; line-height: 1.65; color: rgba(var(--ink), .5); }

/* ── In-article CTA ── */
.article-cta { margin-top: 64px; border: 1px solid var(--hairline); padding: clamp(32px, 4vw, 48px); text-align: center; }
.article-cta h3 { margin: 0; font: 300 24px/1.35 var(--serif); color: rgb(var(--ink-hi)); }
.article-cta p { margin: 14px auto 0; font-size: 14px; line-height: 1.7; color: rgba(var(--ink), .55); max-width: 480px; }
.article-cta-actions { margin-top: 28px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.article-cta-primary, .article-cta-secondary {
  display: inline-flex; align-items: center; justify-content: center; padding: 13px 24px;
  border: 1px solid transparent; font: italic 300 17px/1 var(--serif); transition: border-color .25s, color .25s;
}
.article-cta-primary { border-image: linear-gradient(115deg, rgba(var(--acc),.10), rgba(var(--acc),.32) 48%, rgba(var(--acc),.08)) 1; color: rgb(var(--acc)); }
.article-cta-primary:hover { opacity: 1; border-image: linear-gradient(115deg, rgba(var(--acc),.3), rgba(var(--acc),.6) 48%, rgba(var(--acc),.25)) 1; }
.article-cta-secondary { border-color: rgba(var(--ink), .16); color: rgba(var(--ink), .7); }
.article-cta-secondary:hover { opacity: 1; border-color: rgba(var(--ink), .4); }

/* ── Blog index ── */
.blog-hero { padding: clamp(110px, 13vw, 160px) var(--gx) clamp(40px, 5vw, 64px); max-width: 1100px; margin: 0 auto; }
.blog-grid-wrap { max-width: 1100px; margin: 0 auto; padding: 0 0 clamp(90px, 10vw, 140px); }
.blog-filter-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.blog-filter-row button { appearance: none; background: transparent; border: 1px solid rgba(var(--ink), .16); color: rgba(var(--ink), .6); font: 400 11px/1 var(--sans); letter-spacing: .1em; text-transform: uppercase; padding: 9px 14px; cursor: pointer; transition: border-color .2s, color .2s; }
.blog-filter-row button:hover { border-color: rgba(var(--ink), .4); color: rgba(var(--ink), .85); }
.blog-filter-row button[aria-pressed="true"], .blog-filter-row button.active { border-color: rgba(var(--acc), .42); color: rgb(var(--acc)); background: rgba(var(--acc), .07); }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* ── Responsive ── */
@media (max-width: 992px) {
  .article-layout { grid-template-columns: 1fr; gap: 0; }
  .article-toc-col { position: static; max-height: none; border: 1px solid var(--hairline); padding: 16px 20px; margin-bottom: 40px; }
  .article-toc-kicker { cursor: pointer; border-bottom: 0; padding-bottom: 0; position: relative; }
  .article-toc-kicker::after { content: "+"; position: absolute; right: 0; top: -4px; font: 300 18px/1 var(--serif); color: rgba(var(--ink), .4); transition: transform .2s ease-out; }
  .article-toc-col.toc-open .article-toc-kicker::after { transform: rotate(45deg); }
  .article-toc-list { display: none; }
  .article-toc-col.toc-open .article-toc-list { display: block; padding-top: 16px; }
  .related-grid, .blog-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .related-grid, .blog-grid { grid-template-columns: 1fr; }
  .article-hero { padding-top: 120px; }
}